Upper dogbone insert



FIG. 1 is a rear perspective view of an upper dogbone insert, showing my new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a left view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The dashed lines are included for illustrating details that form no part of the claimed design. 

CLAIM I claim an ornamental design for an upper dogbone insert, as shown and described. 